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1. Abbreviation form of Waste of Space
2. Abbreviation form of Waste of Semen a term popularized by Greenday
3. Someone (usually someone annoying) who doesn't contribute anything to society and also is hideous in appearance.
4. Some thing on the hard drive that isn't necessary.
5. A site that has no purpose to be.

WOS is pronounced like DOS or loss.

WOS is a noun but is often incorrectly used as an adjective (e.g. what a WOS shirt)
1. Correct: Josh is such a big fat WOS.
2. Correct: MS-DOS is such a WOS.
3. Correct: MSN.com is such a WOS.
1. Incorrect: Linda has a WOS haircut, it makes her look like a guy.
by Ness June 01, 2005
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2
WOS is the acronym for Walk Of Shame
I got so shmammered last night and went home with that guy and now am doing the "WOS" heels in hand, mascara running down my face and bra in purse...Where am I, what was his name and what was I thinking?
by The Natty Lite June 20, 2011
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4
the acronym for walk of shame, which means going to work in the clothes you were wearing the following day due to excessive partying and/or sleeping somewhere you didn't expect.
by VAKI5 August 18, 2003
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5
Acronym for Waste Of Sperm. A worthless and generally useless individual. Someone who is a waste of genetic material.
That useless punk is a W.O.S.
by Mikster August 22, 2006
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